Island



W. H. SMITH.

Stove.

Patented June 19, 1860.,

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UNITED STATES PATENT OFFICE.

WILLIAM H. SMITH, OF NEWPORT, RHODE ISLAND.

STOVE.

Specification of Letters Patent No. 28,786, dated J une 19, 1860.

T o all whom 'it may concern:

Be it known that I, IVILLIAMH. SMITH, of Newport, in the county of Newport and State of Rhode Islandfhave invented a new and Improved Radiating Stove or Heater; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawings, making a part of this specification, in which Figure l, is a vertical section of my invention, taken in the line fr, x, Fig. 2. Fig. 2, a horizontal section of the same taken in the line y, y, Fig. l.

Similar letters of reference indicate corresponding parts in the two figures.

The invention may be applied as a portable furnace for warming buildings and also adapted for general use as an ordinary radiating stove.

To enable those skilled in the art to fully understand and construct my invention I will proceed to describe it.

A represents a cylinder which stands on a hollow base B, supported by feet a. This cylinder A, contains the lire pot C, the ash box D, being below the grate Z), and within the hollow base B. On the base B, and around the cylinder A, a cylinder E, is placed, a space being allowed between the two cylinders which space is divided into two compartments F, G, by vertical partitions c, 0, which extend the whole height of the cylinders. The hollow base A, is also divided into two compartments (Z, e, by a partition plate f, shown in Fig. l, a communication g, being allowed between the two compartments beneath the ash-box D, as shown clearly in Fig. 1.--

The upper part of the cylinder A, communicates with the upper' part of the compartment F, between the two cylinders by an opening L, and the lower part of compartment F, communicates by means of holes z', with the com artment (l, in the base B. The lower part o the compartment G, between the two cylinders communicates by means of openings z", with the compartment e, in the base E, and the upper part of compartment G, communicates with a horizontal trunk H, with a series of annular passages I, the lower ends of which by means of a lever trunk H',

communicates with the smoke pipe J, the interior j, of the annular passages I, form heat radiating surfaces.

K, is a pipe which extends from the upper part of the cylinder E, above the cylinder A, to the smoke pipe J. This pipe K, is provided with a damper "In, and the space between the two cylinders A, E, is cut off by a horizontal plate Z, which leaves the upper part of cylinder E, which extends above cylinder A, in direct communication with the firepot O, as shown clearly in Fig. l.

Vhen the stove is used as a heater it is inclosed in a chamber L, which may be of metal or masonry having an air induction pipe M, at its lower end and hot-air eduction pipes N, at its upper end see Fig. 1.

IVithin the cylinder A, there is placed a horizontal perforated tube O, which communicates at each end with tubes P, extending down at the outer side of cylinder A, and communicating with a common tube Q, which passes through the base B, and communicates with the lower part of the chamber L, or with the external air if chamber L, be not used.

The operation is as follows: The products of combustion from the fire pot C, when a direct draft is required, as in kindling, etc., passes through the' pipe K, direct into the smoke pipe J, the damper la, being open, and when a direct draft is not required, the damper /c is closed, and the products of combustion pass up the cylinder A, through the opening la., into the compartment F, down said compartment into the compartment d, of the base B, thence underneath the firebox D, into compartment e, and from thence up through compartment G, into trunk H, down through the annular passages I, into trunk H, and from thence into the smoke pipe J. Thus it will be seen that a very circuitous draft is obtained and consequently a large radiating surface. A draft passage of greater extent is also obtained, than when a divided flue is used in the base, an arrangement common to many stoves and heaters.

By the employment or use of the tubes Q, P, P, and O, warm oxygen is admitted to the inflammable gases, directly over the lire, the air being warmed in its passage up the tubes Q, P, P, and admitted to the gases at a temperature necessary to insure a perfect combustion of the same. It is well known that in order to effect a combustion of the inflammable gases evolved by the imperfect combustion of fuel, air must be mixed with them at a certain temperature, if the air or oxygen be of too low a temperature the gases will not only escape unconsumed, but the cold air will deaden the lire, and there will be a loss, instead of a saving in the consumption of the fuel. The air however in assing through the tubes Q, P, P, is su 'ciently raised in temperature to avoid a contingency of this kind.

I am aware that draft passages or iues for stoves have been arranged in various ways, and said passages have extended through the bases of stoves. I therefore do not claim separately or in the abstract, any particular part herein described as relating to the draft passage, nor do I claim broadly the admitting of air or oxygen to the gases 2. Placing the oxygen-supply tubes Q, P,

P, between the inner and external cylinders A, E, and consequently in contact with the heated products of combustion; for the purpose of admitting warm oxygen to the inflammable gases within the cylinder A, and thereby insure their perfect combustio-n.

WILLIAM H. SMITH.

Witnesses:

VALoRUs H. JOHNSON, FRANcIs B. PEOKHAM, J r. 

